Slick link up between Alexis and Neymar, who releases Messi - but Vermeer is quick off his line to clear.

32'

Great chance for Ajax! Van Rhijn meets Bojan's deep cross from the left with a brilliant diving header that Valdes gets down well to parry away. Ajax's best chance by far, and a wake up call for Barca.

31'

But Ajax are coming back at Barca, and Bojan drills a low but harmless shot well wide.

30'

But it's wasted as they play it short to Duarte, whose shot is awful. So bad, infact, it's out for a throw.

29'

But Ajax push a few players and force their first corner of the game.

28'

Barca have enjoyed 61% possession so far.

27'

Ajax are doing their best to keep Barca at bay, but are unable to penetrate Barca's back line.

26'

Can Messi replicate Ronaldo's hat-trick from last night? Who will score more goals this season... the man from Barca or the man from Madrid? Tweet me @mjdasilva

Ajax have not kept a clean sheet in their last seven Champions League games, conceding 19 goals in the process. The Dutch side are making their 12th appearance in the Champions League. PSV Eindhoven (13) are the only Dutch side to have qualified for the competition more times.

19.25

Barcelona have won none of their last four Champions League games (2 draws, 2 defeats), their worst run since 2001/02. And Lionel Messi has netted 59 goals in the Champions League, only Raul (71) has more goals to his name in the competition.

19.20

A few more stats for you...

19.15

Quite remarkably given each side's glittering European heritage, this will be the first competitive meeting between the two.

19.10

Frank de Boer (Ajax): "It's not nice if everyone thinks Barcelona will win, but I'm sure we can cause problems for them. Barcelona are very offensive and we will have to be at our very best. Lots of teams have tried to beat them but if we stick to our style, I'll be happy."

19.05

Martino continued: "There's always a prioritisation of the tournaments you're involved in. I feel that Barcelona has to win this competition.”

19.00

Gerardo Martino (Barcelona): “It's clear that for every coach to have the chance to be in the Champions League is very relevant in his career. I am very excited about it, although obviously I feel nervous about us living up to our standards in such a prestigious competition."